//
//  UserAccount.swift
//  TYHWeibo
//
//  Created by IOS on 15/7/31.
//  Copyright © 2015年 IOS. All rights reserved.
//

import UIKit

class UserAccount: NSObject, NSCoding {
    
    class var userLogin: Bool {
        return sharedAccount != nil
    }
    
    //用于调用access_token，接口获取授权后的access token。
    var access_token: String?
    //access_token的生命周期，单位是秒数。
    var expires_in: NSTimeInterval = 0 {
        didSet {
            expiresDate = NSDate(timeIntervalSinceNow: expires_in)
        }
    }
    //过期日期
    var expiresDate: NSDate?
    //当前授权用户的UID。
    var uid: String?
    
    //友好显示名称
    var name: String?
    /// 用户头像地址（大图），180×180像素
    var avatar_large: String?
    
    
    init(dict: [String: AnyObject]){
        super.init()
        setValuesForKeysWithDictionary(dict)
        // 设置全局用户信息
        UserAccount.userAccount = self
//        expiresDate = NSDate(timeIntervalSinceNow: expires_in)
    }
    
    override func setValue(value: AnyObject?, forUndefinedKey key: String) {}
    ///对象描述信息
    override var description: String {
        let properties = ["access_token", "expires_in", "expiresDate", "uid"]
    return "\(dictionaryWithValuesForKeys(properties))"
    }
    
    //MARK: 加载用户信息
    func loadUserInfo(finished: (error: NSError?) -> ()) {
        NetworkTools.sharedTools.loadUserInfo(uid!) { (result, error) -> () in
            if error != nil {
                finished(error: error)
                return
            }
            
            //设置用户信息
            self.name = result!["name"] as? String
            self.avatar_large = result!["avatar_large"] as? String
//            print("NAME-----------")
//            print("\(self.avatar_large) \(self.name)")
            //保存用户信息
           self.saveAccount()
            
            finished(error: nil)
        }
    
    }
    
    //MARK: 归档&解档的方法
    ///保存归档文件的路径
    static private let accountPath = (NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory.DocumentDirectory, NSSearchPathDomainMask.UserDomainMask, true).last! as NSString).stringByAppendingPathComponent("account.plist")
    
    ///保存用户账号
    func saveAccount() {
        NSKeyedArchiver.archiveRootObject(self, toFile: UserAccount.accountPath)
    }
    
    ///静态用户属性
    static private var userAccount: UserAccount?
    class var sharedAccount: UserAccount? {
        if userAccount == nil {
            //解档
           userAccount = NSKeyedUnarchiver.unarchiveObjectWithFile(accountPath) as? UserAccount
        
        }
        //判断是否过期
        if let date = userAccount?.expiresDate where date.compare(NSDate()) == NSComparisonResult.OrderedAscending {
            userAccount = nil
        }
        
        return userAccount
    }
    
    
    //MARK: NSCoding
    //归档
    func encodeWithCoder(aCoder: NSCoder) {
        aCoder.encodeObject(access_token, forKey: "access_token")
        aCoder.encodeDouble(expires_in, forKey: "expires_in")
        aCoder.encodeObject(expiresDate, forKey: "expiresDate")
        aCoder.encodeObject(uid, forKey: "uid")
        aCoder.encodeObject(name, forKey: "name")
        aCoder.encodeObject(avatar_large, forKey: "avatar_large")
        
    }
    
    //解档
    required init?(coder aDecoder: NSCoder) {
        access_token = aDecoder.decodeObjectForKey("access_token") as? String
        expires_in = aDecoder.decodeDoubleForKey("expires_in")
        expiresDate = aDecoder.decodeObjectForKey("expiresDate") as? NSDate
        uid = aDecoder.decodeObjectForKey("uid") as? String
        name = aDecoder.decodeObjectForKey("name") as? String
        avatar_large = aDecoder.decodeObjectForKey("avatar_large") as? String
    }
    
    
    
}












